Australian woman to brave sharks on swim from Cuba to U.S.

HAVANA (Reuters) - With favorable weather predicted and a team of scientists on her side, Australian Chloe McCardel will set out on Wednesday to become the first person to make the 103-mile (166-km) swim between Cuba and the Florida Keys without a shark cage to protect her.

The treacherous body of water known as the Florida Straits is the Holy Grail for marathon swimmers and has been conquered only once, by Susie Maroney, also Australian, who used a protective cage at age 22 during her 1997 swim that glided on ocean currents and enabled her to make the journey in just 25 hours.

Since 2011, four unsuccessful, uncaged swims have been attempted, three by American Diana Nyad and one by Australian Penny Palfrey, and in all, 20 people have tried and failed, McCardel said in a press conference on Tuesday at the Hemingway Marina west of Havana. She'll take off from there on Wednesday morning.

"This is like winning a World Cup in soccer or getting a world record and a gold medal at the Olympic Games, but it's possibly harder because no one has been able to do it," said McCardel, who works as a first aid trainer in Melbourne.

McCardel trains 50 weeks a year and has a record of accomplishment that includes two double crossings of the English Channel.

She'll use so-called English Channel marathon rules, meaning she can't touch the boats that will accompany her during what she estimates will be a 60-hour journey, hopefully ending on the shores of Key West, Florida.

Her biggest challenges during the swim, apart from fatigue, will be the poisonous jelly fish that float through the straits, the sharks, the man o'wars, waves and the powerful and unpredictable Gulf Stream, the mighty ocean current that flows west to east through the Florida Straits.
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